.sfooter{
    height: 131px;
    width: 100%;
    background: rgba(50, 58, 69, 1);
    text-align: center;
    padding-top: 15px;
    margin-top: 30px;
}
.sfooter span{
    color: #fff;
    font-family: '微软雅黑';
    font-weight: bold;
    line-height: 35px;
}